To answer the question above,one has to be very much careful to prevent error and any error will surely give a wrong answer and ensure that no step is missed
Back to the given question
3/4 (z+2/5)+2z
Start solving by opening the bracket
That is,3/4(z+2/5)
3z/4 + 3/10
To the remaining part
3z/4+3/10+2z
Find the LCM and the LCM is 40
30z+12+80z /40
Collect like terms
30z+80z+12 /40
110z+12 /40
Which means that the given question cannot be solved further
